package com.mmall.concurrency.example.sync;

import lombok.extern.slf4j.Slf4j;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

@Slf4j
public class SynchronizedExample1 {

    // 修饰一个代码块
    public void test1(int j) {
        synchronized (this) {
            for (int i = 0; i < 10; i++) {
                System.out.println(this);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                log.info("test1 {} - {}", j, i);
            }
        }
    }

    // 修饰一个方法
    public synchronized void test2(int j) {
        for (int i = 0; i < 10; i++) {
            System.out.println(this);  // 每个线程池的线程的this指向不一样
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            log.info("test2 {} - {}", j, i);
        }
    }

    public static void main(String[] args) {
        SynchronizedExample1 example1 = new SynchronizedExample1();
        SynchronizedExample1 example2 = new SynchronizedExample1();
        ExecutorService executorService = Executors.newCachedThreadPool();
        executorService.execute(() -> {
            example1.test1(1);
        });
        executorService.execute(() -> {
            example2.test1(2);
        });

        executorService.shutdown();
        // new Thread(()->example1.test2(1)).start();
        // new Thread(()->example1.test2(2)).start();

    }
    // 结果：不同对象之间的操作互不影响
}
